function(tansArr) {

	var tans = tansArr;
	
    var mtan = null;

    var area = 0.0;

    for each (var tan in tans) {

      var sarea = ShapeUtils.findArea(tan.getShape(), 0.0);
      if (sarea > area) {
    	  area = sarea;
    	  mtan = tan;
      } 

    }

    return mtan;

}

